^(124)Te核1^+态和高自旋态能谱特征的微观研究

Microscopic approach of the spectral property of 1^+ and high-spin states in ^(124)Te nucleus

利用微观sdIBM 2 +2q .p .方案 ,成功地计算出1 2 4 Te核的低自旋态和部分高自旋态 ,特别是较成功地再现了 1+1 ,1+2 ,3+1 ,3+2 和 5 +1 态 .基于该方案推出的能量关系指认 :6 +1 ,8+1 和 10 +1 态是两质子的顺排态 ,解释了在实验上观察到的集体态与单粒子态共存的集体性结构 ,使该方案成为能从微观角度较好地描述没有明显对称性的一般核和过渡区核能谱的有力工具 .

Using a microscopic sdIBM-2+2q.p. approach, the spectra of the low-spin and partial high-spin states in 124 Te nucleus are relatively successfully calculated. In particular, the 1 + 1, 1 + 2, 3 + 1, 3 + 2 and 5 + 1 states are successfully reproduced, the energy relationship resulting from this approach identifies that the 6 + 1, 8 + 1 and 10 + 1 states belong to the aligned states of the two protons. This can explain the recent experimental results that the collective structures may coexist with the single-particle states. So this approach becomes a powerful tool for successfully describing the spectra of general nuclei without clear symmetry and of isotopes located at transitional regions. Finally, the aligned-state structure and the broken-pair energy of the two-quasi-particle are discussed.